L imblum



L. IMBLUM.

COMBlNED MANUAL AND POWER CONT ROLLING MECHANISM. APPLICATION FlLED JUNE 21. 1916.

1,258,337. 7 Patented Mar. 5,1918.

2 SHEETS-SHEET wmvmss; INVENTOR ATTORNEYS I L. IMBLUM. COMBINED MANUAL AND POWER. CONTROLLING MECHANISM Patented Mar; 5, 1918.

- 2 SHEETS-SHEET 2.

JNVENTOR 50 I W540;

APPLICATION FILED JUNE 2h I916.

WITNESSES: 6%

' ATTORNEYS STATES PATENT'omcE.

' i nnimr'lr, or I i I To whomit may concern.

Be it known that I, Lno Innnrjm, a'citi zen of the United. States, and a resident of La Junta, in the county of Otero and State of Colorado, have invented a, certaln new and useful Improvement in Combined Manual'and Power Controlling Mechanism, of

which the 'following is a specification.

My resent invention relates generally to controlling mechanisms for reversing gears, steering ear shifts, and other parts to be controlle of'this general nature, and par- "ticularl to a compact and effective arrangement 0; parts, whereby to permit of manual control in case the power actuated controlling parts are disabled or the source of power fails. I 4

In the accompanying drawings illustrating my invention, an forming a part of thls specification. T p

, Fi re 1 is a side elevation illustrating t e practical application of my invention, in connection with a locomotive reversing shaft. 4

Fi 2 is a detail sectional view illustrat- 'ing t e locking device for the manual controlling rods. J

Fig. 3 is an enlarged view, partly in section, of the power cylinder arid its parts, {)ogether with the power controlling meme er. Fig. 4 is a sectional view in detail through the power controlling member, and

Fig. 5 is a. cross section through the power cylinder, taken substantially on line" 5-5 of Fi Ref ticularly to .Fig. 1, I have shown for purposes of illustration, my invention in con- "nection with a locomotlve, the boiler of which appears at 10 and the reversing shaft of which appears at 11,,With the bell crank' 12 secured thereto, .one 'arm of which is pivotally connected to the link hanger 13 tion of .the said controlling member being provided with a transverse slotlSdividing the same into forward and rear portions Specification of Letters 2mm, a Application at June :1, 191a. mm m; 10am.

errin'g now to these figures, and par-- e rod 16 upon,

atente d" Mar, 5, 191 8,

-19 and' 20, these ortions having axitlly alined bores 21 an 22, the inner adjacent ends of which communicate with the atmosphere through the slot 18.

- By reference particularly to Fig. be noted that the outer end of t e bore 21 is closed by a plug 23, and the outer end of the bore 22 recelves one'threaded end of. a mpple24, the opposite end of which is adapted forthe reception of a flexible hose or other connection 25 extending from a 4 it willsuitable source'of pressure, as, for instance,

the main air reservoir 26, as shown in Fig. 1. Surrounding and communicating with the bores 21 and 22, are annular grooves 27 and 28 respectively communicating with depending ports 29 and-30, port 29 communicating 1 at its opposite end with a pressure conyeying tube 31, and port 30 communicating at.

its lower end with the outer ends of a tubular piston 32, through which the tube '31 extends in spaced co-axial relation.

Extending respectively into the bores 21 and 22 and forming pressure chambers therein, are the heads 33 and 34 of a piston valve, the stem' connecting-which heads, is extended through the slot 18 between the side portions 19 and 20, and is pivotally connected at an intermediate point35 with one depending angular end 36 of a manual controlling and actuating rod 37, the heads 33 and 34, as particularly seen in Fig. 4, being spaced apart to normally cover the grooves and 28. The spaces within the bores 21 and 22 beyond the heads 33 and 34, are connected by pressure channels 38. I These spaces are thus in communication at all times with the source of pressure through the nipple 24-which opens into one of the spaces,

namely, the outer portion ofthe bore 22, as

before stated.

The piston rod 32- extends, with its internal tube 31, through one end of a power cylinder 39, and into connection with a piston 40- mounted for movement in opposite vdirections within said cylinder, the respective end of the inner tube 31 communicating with an axial port 41 through the .piston 40 and thus, with the cylinderspace 42, at one side of the piston 40, and the rod 32 having laterally projecting ports 43 as clearlyl seen in 3 and 5, opening into the cy 'nder space 44 upon the relatively opposite side of piston head 40, 'thus placing the cylinder space 42 in communication wlth the annular channel orgroo' V027 and the cylinder space 44 in communication" with the annular groove 28. Themanual controlling and actuating rod 37 before referred to, is'provided at end opposite the an ular extension 36, with a handle 45 and with attoothed rack 46 ad acent said handle, the latter working through a rigid bearing 47 having an inner tooth 48 ada ted for engagement with the rack 46 at a se ected point to lock the rod 37 in selected adjustment the o nings 49 of bear1ng 47' being sufliciently arge to permit of lateral movement of the rod 37 to effect engagement extend the reach rod thereof with, and disengagement thereof from, the tooth 48 of the bearings, andbein provided with a spring 50 engaging the r to normally hold the same in engagement with the said tooth 48.

Thus, in operation when it 14.for actuating the arts to'be controlled in one direction, as, or instance, in the present/case, lowering the link hanger 13, t e manual controlling rod 37- is disengaged and thrust longitudinally away' from the operator thus movin the piston valve to the right in Fi 4, ant uncovering the groove 27 to establish com.-

munication between the same and the outer through the nipple 24 and thechannel 38, at

end of the bore 21, and con'se uently in'communication with the source fluid pressure 'accumulates to force the piston to the right, thus moving the controllin member 15 which-is ri 'd and movable Wlt the piston and item 32, and thus efiecting the demovement of the angular end 36- of the con.

sired outward longitudinal movement of the reach rod 14, it being understood that, dur- .ing this operation, the operator holds the controlling rod37 out of engagement with the tooth 48 of the bearin 47. When thedesii'ed extent of movement as been reached,

the operator releases the handle 45 ofthe controlling rod 37, and the spring 50. immediately forces the rack 46 into' enga ement with the .tooth 4 S, and durin the rther slight mvement of the contro lin member '15, the piston valve is moved to t e left in Fig. 4 with respect to the said controlling f member, by virtue of the slight relative trolling rod 37 in the slot 18. This movement causes theheads 33 and 34 to first lap thegrooves 27 and- 28 and then causes head 34 ,to. uncover groove28, and establish communication between the groove 28 and thevso'urce offluid -prcssu're' through the nipple 24, groove 27 in the meantime re.-

ma mn'g covered by virtue of the-exhaust lap of thevalve. The pressure thus is desired to' troll between 9 relatively o passes through port 30 and hollow piston rod 32- to and the controlling rod -37- is capable of actuating the same to move the reach rod 14 1n one direction. or the other, the said rod 37 having only limited movement with respect tothe controlling member 15.

It is also obvious that, due to the particacking,or jointsiwill have-little if any efthe cylinder space 44 u on the right hand -ular construction, the reversing gear or provision for manual control in ect upon the'tgenera'l operation so longas the supply of age, an obviates the necessity of maintainmg the reversing gear in first class con ition at all times,

- 1. iIn a controlling mechanism of the character described, the combination with parts :to controlled of a controlling member hRVlLlg-flOIHIGCtlOIl with the parts to be conand having an upper transverse slot;

and axially alined bores upon opposite sides of the said slot, each of said bores being provided in its well with an annular, cove, and one of said bores having communication at its outer-end with a pressure 'supply nipple, theinner ends of said bores communicatmg'with'the atmosphere through the $1 said controlling member having a" pair 0 ports therein, respectively commumcatin'g with said grooves, apower cylinder, a pis ton movable therein and connected to the said controlling member, means-establishin communication between the said ports 0 said controllingfmember and the. sa1d power cylinder at oppositesides of the piston,'a

piston valve including spa cedheads disposed within the said bores of the controlling member and normally lapping the sai goons of the home, said controlling memr havin pressure channels communicating said bores beyond the sa: valve heads, and

uid is greater than the leak-- ite ends of its acter described, the combination with the lar end connected to the stem of the piston valve within the transverse upper slot of the controlling member.

2. In a controlling mechanism of the charparts to be controlled, of a power cylinder having a pressure actuated piston, a source of fluid pressure connected to said cylinder, a controlling member connected to the piston of said cylinder and movable therewith and having a valve controlling the supply of fluid pressure to said cylinder, connections between said controlling member and the parts to be controlled, a manually actuated member having connection with said valve, said manually actuated member normally having a limited movement in respect to said controlling member and engageable with the latter at the limits of its movement whereby the controlling member may be shifted by hand, and means for locking said manually actuated member in selected posi tion.

3. In a controlling mechanism of the character described, the combination having a pressure parts to be controlled, of a power cylinder actuated piston, a source of fluid pressure connected to said cylinder, a controlling member connected to the piston of said cylinder and movable therewith, 30 and having a slotted portion with iston chambers at opposite sides of the s ot, a valve controlling the supply of fluid pressure to said cylinder having pistons in said piston chambers the said pistons and extending through the slot of the controlling member, connections between said controlling member and the parts to be controlled, a manually actuated member having connection with said valve 40 at a point between its said pistons and within the slot of said controlling member, and means for locking said manually actuated member in adjusted position.

- LEO IMBLUM.

Witnesses: Cmnms R. Bucxmr, Om WALKER;

with the 25 and aportion connecting 

